diff --git a/addons/mail/static/tests/chatter_tests.js b/addons/mail/static/tests/chatter_tests.js
index f98cd1382a8..a2b6566f4d0 100644
--- a/addons/mail/static/tests/chatter_tests.js
+++ b/addons/mail/static/tests/chatter_tests.js
@@ -168,6 +168,7 @@ QUnit.test('Activity Done keep feedback on blur', function (assert) {
         View: FormView,
         model: 'partner',
         data: this.data,
+        services: this.services,
         res_id: 2,
         arch:'<form string="Partners">' +
                 '<div class="oe_chatter">' +
diff --git a/addons/project/models/project.py b/addons/project/models/project.py
index cf2e2f62d55..1e88f940a4b 100644
--- a/addons/project/models/project.py
+++ b/addons/project/models/project.py
@@ -399,6 +399,7 @@ class Project(models.Model):
         action_context = safe_eval(action['context']) if action['context'] else {}
         action_context.update(self._context)
         action_context['search_default_parent_res_name'] = self.name
+        action_context.pop('group_by', None)
         return dict(action, context=action_context)
 
     # ---------------------------------------------------
diff --git a/addons/rating/models/rating.py b/addons/rating/models/rating.py
index 9d2f56b82f8..3aea681b0fb 100644
--- a/addons/rating/models/rating.py
+++ b/addons/rating/models/rating.py
@@ -106,9 +106,11 @@ class Rating(models.Model):
             'parent_res_id': False,
         }
         if hasattr(current_record, 'rating_get_parent'):
-            parent_res_model = getattr(current_record, current_record.rating_get_parent())
-            data['parent_res_model_id'] = self.env['ir.model']._get(parent_res_model._name).id
-            data['parent_res_id'] = parent_res_model.id
+            current_record_parent = current_record.rating_get_parent()
+            if current_record_parent:
+                parent_res_model = getattr(current_record, current_record_parent)
+                data['parent_res_model_id'] = self.env['ir.model']._get(parent_res_model._name).id
+                data['parent_res_id'] = parent_res_model.id
         return data
 
     @api.multi